CN202894456U - Indexable cutter blade with chamfering structure - Google Patents
Indexable cutter blade with chamfering structure Download PDFInfo
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- CN202894456U CN202894456U CN 201220638895 CN201220638895U CN202894456U CN 202894456 U CN202894456 U CN 202894456U CN 201220638895 CN201220638895 CN 201220638895 CN 201220638895 U CN201220638895 U CN 201220638895U CN 202894456 U CN202894456 U CN 202894456U
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- chamfered edge
- edge
- main cutting
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Abstract
The utility model discloses an indexable cutter blade with a chamfering structure, and the indexable cutter blade comprises at least one pair of adjacent main cutting edges, wherein a knife point part is formed on the junction of the pair of adjacent main cutting edges, and the indexable cutter blade is provided with a negative chamfered edge extending from the knife point part to the main cutting edges, and in the direction which is away from the knife point part from the knife point part, the width W of the negative chamfered edge is gradually reduced, and the angle alpha of the chamfered edge is gradually increased. The indexable cutter blade with the chamfering structure has the advantages of simplicity in structure, long service life and remarkable economic benefit.
Description
Technical field
The utility model relates to the metal cutting manufacture field, relates in particular to a kind of indexable insert tip, throw away tip with chamfered edge structure.
Background technology
The Indexable cutting inserts of processing that is used for being shaped will be comprised of a main cutting edge and point of a knife at least.This class blade mainly carries out ball milling, compacting and sintering by powder metallurgy process to be made, and also can be made by pressure processing and carry out machining behind the blank and form.
When carrying out machining, sometimes need to arrange the cutting edge strength that the chamfered edge structure guarantees blade.The chamfered edge of blade characterizes with chamfered edge width W and two parameters of chamfered edge angle [alpha] usually.Wherein the chamfered edge width W is the width of chamfered edge on rake face, and the chamfered edge angle [alpha] is the angle of chamfered edge face and rake face.
In the prior art, two kinds of chamfered edge modes commonly used: a kind of is straightedge, also claims logical rib, and namely chamfered edge width W and chamfered edge angle [alpha] are along remaining unchanged on the main cutting cutting edge direction; Another kind of chamfered edge is slant edge, and namely the chamfered edge width W changes along edge direction, and the chamfered edge width W is gradually reduced to main sword district by the point of a knife district, and the chamfered edge angle [alpha] is constant.
In the existing chamfered edge technology, the damaged ability in the anti-border of the wearability of point of a knife and main sword can not get both; The chamfered edge angle that blade is large can improve the intensity of main cutting edge, and the border of reducing blade is damaged, but the angle of chamfered edge is large, and cutting resistance is also just large, and many temperature are high so that point of a knife generates heat, and wearability is also poor.Otherwise the chamfered edge angle is little, and then the main cutting edge wearability is good, but the intensity of main cutting edge is little, produces easily the border breakage.The chamfered edge width greatly also has similar rule.This is the deficiencies in the prior art.Therefore, the damaged ability of the wearability that the chamfered edge angle that logical rib blade is consistent and width can't be taken into account the point of a knife place and the anti-border of main sword is improved both simultaneously.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, the indexable insert tip, throw away tip that provides a kind of simple in structure, long service life, economic benefit significantly to have the chamfered edge structure.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of indexable insert tip, throw away tip with chamfered edge structure, comprise the main cutting edge that at least one pair of is adjacent, a pair of adjacent main cutting edge forms the point of a knife part in the junction, described indexable insert tip, throw away tip is provided with the negative chamfered edge that partly extends to main cutting edge from point of a knife, from point of a knife part to the direction away from the point of a knife part, the chamfered edge width W of described negative chamfered edge reduces gradually, and the chamfered edge angle [alpha] increases gradually.
The chamfered edge length H of described negative chamfered edge is 20%～70% of described main cutting edge length L.
The chamfered edge length H of described negative chamfered edge is 25%～40% of described main cutting edge length L.
In described point of a knife part, the scope of described chamfered edge width W is 0.1mm～1.0mm, and the scope of described chamfered edge angle [alpha] is 5～25 °; At described main cutting edge, the scope of described chamfered edge width W is 0.03mm～0.6mm, and the scope of described chamfered edge angle [alpha] is 10 °～35 °.
In described point of a knife part, the scope of described chamfered edge width W is 0.1mm～0.6mm, and the scope of described chamfered edge angle [alpha] is 5 °～20 °; At described main cutting edge, the scope of described chamfered edge width W is 0.1mm～0.4mm, and the scope of described chamfered edge angle [alpha] is 10 °～25 °.
Compared with prior art, the utility model has the advantage of:
Indexable insert tip, throw away tip with chamfered edge structure of the present utility model, from point of a knife part to the direction away from the point of a knife part, the chamfered edge width W of negative chamfered edge reduces gradually, the chamfered edge angle [alpha] increases gradually, improve the breakage resistant luer ability of main cutting edge, improved the wearability of point of a knife part, thereby taken into account the durability of main cutting edge and point of a knife part, make obtain prolonging the service life of indexable insert tip, throw away tip, economic benefit is obvious.
Description of drawings
Fig. 1 is the perspective view of indexable insert tip, throw away tip of the present utility model.
Fig. 2 is the main TV structure schematic diagram of indexable insert tip, throw away tip of the present utility model.
Fig. 3 is the right TV structure schematic diagram of indexable insert tip, throw away tip of the present utility model.
Each label represents among the figure:
1, main cutting edge; 2, point of a knife part; 3, negative chamfered edge.
The specific embodiment
Fig. 1 to Fig. 3 shows a kind of indexable insert tip, throw away tip with chamfered edge structure of the present utility model, comprise at least one pair of adjacent main cutting edge 1, a pair of adjacent main cutting edge 1 forms point of a knife part 2 in the junction, indexable insert tip, throw away tip is provided with the negative chamfered edge 3 that extends to main cutting edge 1 from point of a knife part 2, from point of a knife part 2 to the direction away from point of a knife part 2, the chamfered edge width W of negative chamfered edge 3 reduces gradually, and the chamfered edge angle [alpha] increases gradually.The chamfered edge length H of negative chamfered edge 3 is 20%～70% of main cutting edge 1 length L, and is preferred, and the chamfered edge length H of negative chamfered edge 3 is 25%～40% of main cutting edge 1 length L.
In point of a knife part 2, the scope of chamfered edge width W is 0.1mm～1.0mm, and preferable range is 0.1mm～0.6mm, and the scope of chamfered edge angle [alpha] is 5～25 °, and preferable range is 5 °～20 °; At main cutting edge 1, the scope of chamfered edge width W is 0.03mm～0.6mm, and preferable range is 0.1mm～0.4mm, and the scope of chamfered edge angle [alpha] is 10 °～35 °, and preferable range is 10 °～25 °.
In the present embodiment, the chamfered edge length H of negative chamfered edge 3 is 65% of main cutting edge 1 length L, in point of a knife part 2, chamfered edge width W maximum is 0.4mm, and chamfered edge angle [alpha] minimum of a value is 10 °, at main cutting edge 1, chamfered edge width W minimum of a value is 0.3mm, and chamfered edge angle [alpha] maximum is 15 °.
Indexable insert tip, throw away tip with chamfered edge structure of the present utility model, from point of a knife part 2 to the direction away from point of a knife part 2, the chamfered edge width W of negative chamfered edge 3 reduces gradually, the chamfered edge angle [alpha] increases gradually, improve the breakage resistant luer ability of main cutting edge 1, improved the wearability of point of a knife part 2, thereby taken into account the durability of main cutting edge 1 and point of a knife part 2, make obtain prolonging the service life of indexable insert tip, throw away tip, economic benefit is obvious.
Below in conjunction with the contrast experiment of blade and the existing blade of five kinds of different parameters of the present utility model, the utility model is described in further detail.
The contrast experiment 1:
The utility model blade A: the chamfered edge length H of negative chamfered edge 3 is 35% of main cutting edge 1 length L, and in point of a knife part 2, chamfered edge width W maximum is 0.4mm, chamfered edge angle [alpha] minimum of a value is 10 °, at main cutting edge 1, chamfered edge width W minimum of a value is 0.3mm, and chamfered edge angle [alpha] maximum is 15 °.
Contrast blade A: its structure is identical with the utility model blade A with material, and difference is that its chamfered edge structure is logical rib, chamfered edge width W=0.4mm, chamfered edge angle [alpha]
=15 °.
Contrast blade A ': its structure is identical with the utility model blade A with material, and difference is that its chamfered edge structure is slant edge, the chamfered edge angle [alpha]
=15 °, the maximum chamfer width is 0.6mm, and chamfered edge length is 8mm.
Above-mentioned three kinds of blades are carried out the cutting test of Milling Process 45# steel (HB is 170～220), and cutting parameter is as follows:
Cutting depth: ap=3.5mm
Feed engagement: fz=0.3mm
Cutting speed: v=180m/min
Result of the test: the flank wear amount of the utility model blade A point of a knife in the time of 14.6 minutes reaches 0.22mm, and the flank wear amount of contrast blade A point of a knife in the time of 8 minutes reaches this value, larger border has just appearred in contrast blade A ' in the time of 6 minutes damaged, can't proceed processing again.
The contrast experiment 2:
The utility model blade B: the chamfered edge length H of negative chamfered edge 3 is 25% of main cutting edge 1 length L, and in point of a knife part 2, chamfered edge width W maximum is 0.1mm, chamfered edge angle [alpha] minimum of a value is 5 °, at main cutting edge 1, chamfered edge width W minimum of a value is 0.05mm, and chamfered edge angle [alpha] maximum is 15 °.
Contrast blade B: its structure is identical with the utility model blade B with material, and difference is that its chamfered edge structure is logical rib, chamfered edge width W=0.1mm, chamfered edge angle [alpha]
=10 °;
Contrast blade B ': its structure is identical with the utility model blade B with material, and difference is that its chamfered edge structure is slant edge, the chamfered edge angle [alpha]
=10 °, the maximum chamfer width is 0.2mm, and chamfered edge length is 6mm.
Above-mentioned three kinds of blades are carried out the cutting test of Milling Process 45# steel (HB is 170～220), take DRY CUTTING mode finish-milling plane, cutting parameter is as follows:
Cutting depth: ap=0.5mm
Feed engagement: fz=0.15mm
Cutting speed: v=300m/min
Result of the test: the utility model blade B reaches the tool changing requirement in 65 part trailing flank wear extenies of processing, and contrast blade B arrives the tool changing requirement after processing 48 parts, cuts because of damaged stopping behind 40 parts of contrast blade B ' processing.
The contrast experiment 3:
The utility model blade C: the chamfered edge length H of negative chamfered edge 3 is 40% of main cutting edge 1 length L, and in point of a knife part 2, chamfered edge width W maximum is 0.2mm, chamfered edge angle [alpha] minimum of a value is 15 °, at main cutting edge 1, chamfered edge width W minimum of a value is 0.1mm, and chamfered edge angle [alpha] maximum is 25 °.
Contrast blade C: its structure is identical with the utility model blade C with material, and difference is that its chamfered edge structure is logical rib, chamfered edge width W=0.1mm, chamfered edge angle [alpha]
=20 °;
Contrast blade C ': its structure is identical with the utility model blade C with material, and difference is that its chamfered edge structure is slant edge, the chamfered edge angle [alpha]
=20 °, the maximum chamfer width is 0.2mm, and chamfered edge length is 8mm.
Above-mentioned three kinds of blades are carried out dry type Milling Process 1Cr18Ni9Ti(HB180) cutting test, cutting parameter is as follows:
Cutting depth: ap=1mm
Cutting width: aw=60mm
Feed engagement: fz=0.2mm
Cutting speed: v=120m/min
Result of the test: the utility model blade C reaches 0.20mm in 33.5 minutes trailing flank wear extenies of cutting, and contrast blade C reaches 0.21mm in 23 minutes trailing flank wear extenies of cutting, and the phenomenon of point of a knife scaling loss appears in contrast blade C ' after 18 minutes in cutting.
The contrast experiment 4:
The utility model blade D: the chamfered edge length H of negative chamfered edge 3 is 30% of main cutting edge 1 length L, and in point of a knife part 2, chamfered edge width W maximum is 0.4mm, chamfered edge angle [alpha] minimum of a value is 15 °, at main cutting edge 1, chamfered edge width W minimum of a value is 0.2mm, and chamfered edge angle [alpha] maximum is 25 °.
Contrast blade D: its structure is identical with the utility model blade D with material, and difference is that its chamfered edge structure is logical rib, chamfered edge width W=0.4mm, chamfered edge angle [alpha]
=20 °;
Contrast blade D ': its structure is identical with the utility model blade D with material, and difference is that its chamfered edge structure is slant edge, the chamfered edge angle [alpha]
=25 °, the maximum chamfer width is 0.2mm, and chamfered edge length is 8mm.
Above-mentioned three kinds of blades are carried out the cutting test of dry type Milling Process 45# forged steel (HB is 240～270), and cutting parameter is as follows:
Cutting depth: ap=2mm
Feed engagement: fz=0.3mm
Cutting speed: v=120m/min
Result of the test: the utility model blade D reaches 0.21mm in 125 minutes trailing flank wear extenies of cutting, and contrast blade D reaches 0.25mm in 90 minutes trailing flank wear extenies of cutting, and contrast blade D ' occurs cutting edge in cutting after 75 minutes and collapses scarce phenomenon.
The contrast experiment 5:
The utility model blade E: the chamfered edge length H of negative chamfered edge 3 is 35% of main cutting edge 1 length L, and in point of a knife part 2, chamfered edge width W maximum is 0.5mm, chamfered edge angle [alpha] minimum of a value is 20 °, at main cutting edge 1, chamfered edge width W minimum of a value is 0.3mm, and chamfered edge angle [alpha] maximum is 30 °.
Contrast blade E: its structure is identical with the utility model blade E with material, and difference is that its chamfered edge structure is logical rib, chamfered edge width W=0.5mm, chamfered edge angle [alpha]
=25 °;
Contrast blade E ': its structure is identical with the utility model blade E with material, and difference is that its chamfered edge structure is slant edge, the chamfered edge angle [alpha]
=25 °, the maximum chamfer width is 0.5mm, and chamfered edge length is 10mm.
Above-mentioned three kinds of blades are carried out the cutting test of dry type Milling Process cast stainless steel (HB is 220～260), and cutting parameter is as follows:
Cutting depth: ap=3mm
Feed engagement: fz=0.20mm
Cutting speed: v=100m/min
Result of the test: the utility model blade E reaches 0.25mm in 100 minutes trailing flank wear extenies of cutting, and contrast blade E reaches 0.25mm in 78 minutes trailing flank wear extenies of cutting, and the phenomenon of border breakage appears in contrast blade E ' after 60 minutes in cutting.
The above only is preferred embodiment of the present utility model, and protection domain of the present utility model also not only is confined to above-described embodiment, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should propose, for those skilled in the art, in the improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. indexable insert tip, throw away tip with chamfered edge structure, comprise at least one pair of adjacent main cutting edge (1), a pair of adjacent main cutting edge (1) forms point of a knife part (2) in the junction, described indexable insert tip, throw away tip is provided with the negative chamfered edge (3) that extends to main cutting edge (1) from point of a knife part (2), it is characterized in that: from point of a knife part (2) to the direction away from point of a knife part (2), the chamfered edge width W of described negative chamfered edge (3) reduces gradually, and the chamfered edge angle [alpha] increases gradually.
2. the indexable insert tip, throw away tip with chamfered edge structure according to claim 1, it is characterized in that: the chamfered edge length H of described negative chamfered edge (3) is 20%～70% of described main cutting edge (1) length L.
3. the indexable insert tip, throw away tip with chamfered edge structure according to claim 2, it is characterized in that: the chamfered edge length H of described negative chamfered edge (3) is 25%～40% of described main cutting edge (1) length L.
4. each described indexable insert tip, throw away tip with chamfered edge structure in 3 according to claim 1, it is characterized in that: in described point of a knife part (2), the scope of described chamfered edge width W is 0.1mm～1.0mm, and the scope of described chamfered edge angle [alpha] is 5～25 °; In described main cutting edge (1), the scope of described chamfered edge width W is 0.03mm～0.6mm, and the scope of described chamfered edge angle [alpha] is 10 °～35 °.
5. the indexable insert tip, throw away tip with chamfered edge structure according to claim 4 is characterized in that: in described point of a knife part (2), the scope of described chamfered edge width W is 0.1mm～0.6mm, and the scope of described chamfered edge angle [alpha] is 5 °～20 °; In described main cutting edge (1), the scope of described chamfered edge width W is 0.1mm～0.4mm, and the scope of described chamfered edge angle [alpha] is 10 °～25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638895 CN202894456U (en) | 2012-11-28 | 2012-11-28 | Indexable cutter blade with chamfering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638895 CN202894456U (en) | 2012-11-28 | 2012-11-28 | Indexable cutter blade with chamfering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202894456U true CN202894456U (en) | 2013-04-24 |
Family
ID=48115173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220638895 Withdrawn - After Issue CN202894456U (en) | 2012-11-28 | 2012-11-28 | Indexable cutter blade with chamfering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202894456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846486A (en) * | 2012-11-28 | 2014-06-11 | 株洲钻石切削刀具股份有限公司 | Indexable insert having chamfer structure |
-
2012
- 2012-11-28 CN CN 201220638895 patent/CN202894456U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846486A (en) * | 2012-11-28 | 2014-06-11 | 株洲钻石切削刀具股份有限公司 | Indexable insert having chamfer structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130424 Effective date of abandoning: 20171226 |